Explanipedia

Symmetry of screening masses of mesons in two-flavor lattice QCD at high temperatures Open

Yasumichi Aoki, Hidenori Fukaya, Issaku Kanamori, Yoshifumi Nakamura, Christian Rohrhofer , et al. · 2025

We investigate spatial two-point correlation functions of mesonic operators in two-flavor lattice QCD at high temperatures. The simulated temperatures over the range $T \in [147, 330]$ MeV, where the critical temperature is estimated aroun…

Axial U(1) symmetry near the pseudocritical temperature in $N_f=2+1$ lattice QCD with chiral fermions Open

Hidenori Fukaya, Sinya Aoki, Yasumichi Aoki, S. Hashimoto, Issaku Kanamori , et al. · 2024

We study the $U(1)_A$ anomaly at high temperatures of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\\"obius\ndomain-wall (MDW) fermions, and the measurements are reweighted to those with overlap fermions.…

Axial U(1) symmetry near the pseudocritical temperature in $N_f=2+1$ lattice QCD with chiral fermions Open

Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya, S. Hashimoto, Issaku Kanamori , et al. · 2024

We study the $U(1)_A$ anomaly at high temperatures of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with Möbius domain-wall (MDW) fermions, and the measurements are reweighted to those with overlap fermions. We …

What is chiral susceptibility probing? Open

Hidenori Fukaya, Sinya Aoki, Yasumichi Aoki, S. Hashimoto, Christian Rohrhofer , et al. · 2022

In the early days of QCD, the axial $U(1)$ anomaly was considered as a trigger for the breaking of the $SU(2)_L\times SU(2)_R$ symmetry through topological excitations of gluon fields. However, it has been a challenge for lattice QCD to qu…

Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions Open

Kei Suzuki, Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya, S. Hashimoto , et al. · 2022

We study the $U(1)_A$ anomaly in the high-temperature phase of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and in the measurements the determinant is reweighted to tha…

Symmetries of temporal correlators and the nature of hot QCD Open

L. Ya. Glozman, Yasumichi Aoki, S. Hashimoto, Christian Rohrhofer · 2022

The temperature of the chiral restoration phase transition at 130 MeV as well as the temperature of the center symmetry ("deconfinement") phase transition in a pure glue theory at 300 MeV are two independent temperatures and their interpla…

Axial U(1) symmetry at high temperatures in $N_f=2+1$ lattice QCD with chiral fermions Open

Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya, S. Hashimoto, Issaku Kanamori , et al. · 2022

We study the $U(1)_A$ anomaly in the high-temperature phase of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with Möbius domain-wall (MDW) fermions, and in the measurements the determinant is reweighted to that …

Role of the axial <i>U</i>(1) anomaly in the chiral susceptibility of QCD at high temperature Open

Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya, S. Hashimoto, Christian Rohrhofer , et al. · 2022

The chiral susceptibility, or the first derivative of the chiral condensate with respect to the quark mass, is often used as a probe for the QCD phase transition since the chiral condensate is an order parameter of SU(2)L × SU(2)R symmetry…

Study of the axial anomaly at high temperature with lattice chiral fermions Open

S. Aoki, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, S. Hashimoto , et al. · 2021

We investigate the axial U(1) anomaly of two-flavor QCD at temperatures\n190--330 MeV. In order to preserve precise chiral symmetry on the lattice, we\nemploy the Mobius domain-wall fermion action as well as overlap fermion action\nimpleme…

Role of axial U(1) anomaly in chiral susceptibility of QCD at high temperature Open

Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya, S. Hashimoto, Christian Rohrhofer , et al. · 2021

The chiral susceptibility, or the first derivative of the chiral condensate with respect to the quark mass, is often used as a probe for the QCD phase transition since the chiral condensate is an order parameter of $SU(2)_L \times SU(2)_R$…

Axial U(1) symmetry and mesonic correlators at high temperature in $N_f=2$ lattice QCD Open

Kei Suzuki, Sinya Aoki, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya , et al. · 2020

We investigate the high-temperature phase of QCD using lattice QCD simulations with $N_f = 2$ dynamical M\"obius domain-wall fermions. On generated configurations, we study the axial $U(1)$ symmetry, overlap-Dirac spectra, screening masses…

Axial U(1) symmetry and mesonic correlators at high temperature in $N_f=2$ lattice QCD Open

Kei Suzuki, Sinya Aoki, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya , et al. · 2020

We investigate the high-temperature phase of QCD using lattice QCD simulations with $N_f = 2$ dynamical Möbius domain-wall fermions. On generated configurations, we study the axial $U(1)$ symmetry, overlap-Dirac spectra, screening masses f…

Chiral-spin symmetry of the meson spectral function above T Open

Christian Rohrhofer, Yasumichi Aoki, L. Ya. Glozman, S. Hashimoto · 2020

Symmetries of the light hadron spectrum in high temperature QCD Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, Christof Gattringer , et al. · 2020

Properties of QCD matter change significantly around the chiral crossover temperature, and the effects on $U(1)_A$ and topological susceptibilities, as well as the meson spectrum have been studied with much care. Baryons and the effect of …

Symmetries of the light hadron spectrum in high temperature QCD Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, Christof Gattringer , et al. · 2019

Properties of QCD matter change significantly around the chiral crossover temperature, and the effects on $U(1)_A$ and topological susceptibilities, as well as the meson spectrum have been studied with much care. Baryons and the effect of …

Symmetries of spatial meson correlators in high temperature QCD Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, Christof Gattringer , et al. · 2019

Based on a complete set of $J = 0$ and $J=1$ spatial isovector correlation\nfunctions calculated with $N_F = 2$ domain wall fermions we identify an\nintermediate temperature regime of $T \\sim 220 - 500$ MeV ($1.2T_c$--$2.8T_c$),\nwhere ch…

Meson correlation functions at high temperature QCD: $SU(2)_{CS}$ symmetry vs. free quarks Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, L. Ya. Glozman, S. Hashimoto , et al. · 2019

We report on the progress of understanding spatial correlation functions in high temperature QCD. We study isovector meson operators in $n_f=2$ QCD using domain-wall fermions on lattices of $N_s=32$ and different quark masses. It has previ…

Erratum: Approximate degeneracy of spatial correlators in high temperature QCD [Phys. Rev. D <b>96</b>, 094501 (2017)] Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, L. Ya. Glozman , et al. · 2019

Received 11 February 2019DOI:https://doi.org/10.1103/PhysRevD.99.039901© 2019 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasFinite temperature field theoryLattice QCDQuantum chromodynamicsParticles & Fields

Observation of approximate SU(2) and SU(2n) symmetries in high temperature lattice QCD Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, L. Ya. Glozman , et al. · 2019

We study spatial isovector J = 1 meson correlators in nf = 2 QCD with dynamical domain-wall fermions on 323 × 8 lattices at temperatures T = 220–380 MeV. We observe an approximate degeneracy of all considered correlators with increasing te…

Meson correlation functions at high temperature QCD: $SU(2)_{CS}$ symmetry vs. free quarks Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, L. Ya. Glozman, S. Hashimoto , et al. · 2018

We report on the progress of understanding spatial correlation functions in high temperature QCD. We study isovector meson operators in $N_f=2$ QCD using domain-wall fermions on lattices of $N_s=32$ and different quark masses. It has previ…

Approximate degeneracy of spatial correlators in high temperature QCD Open

Christian Rohrhofer, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya, L. Ya. Glozman , et al. · 2017

We study spatial isovector meson correlators in $N_f=2$ QCD with dynamical\ndomain-wall fermions on $32^3\\times 8$ lattices at temperatures $T=220-380$\nMeV. We measure the correlators of spin-one ($J=1$) operators including vector,\naxia…

Angular and chiral content of the $\rho$ and $\rho^\prime$ mesons Open

Christian Rohrhofer, Markus Pak, L. Ya. Glozman · 2016

We identify the chiral and angular momentum content of the leading quark-antiquark Fock component for the $\rho(770)$ and $\rho(1450)$ mesons using a two-flavor lattice simulation with dynamical Overlap Dirac fermions. We extract this info…

Angular momentum content of the $ρ(1450)$ from chiral lattice fermions Open

Christian Rohrhofer, M. Pak, L. Ya. Glozman · 2016

We identify the chiral and angular momentum content of the leading quark-antiquark Fock component for the $ρ(770)$ and $ρ(1450)$ mesons using a two-flavor lattice simulation with dynamical Overlap Dirac fermions. We extract this informatio…

Angular momentum content of the $\rho(1450)$ from chiral lattice fermions Open

Christian Rohrhofer, M. Pak, L. Ya. Glozman · 2016

We identify the chiral and angular momentum content of the leading quark-antiquark Fock component for the $\rho(770)$ and $\rho(1450)$ mesons using a two-flavor lattice simulation with dynamical Overlap Dirac fermions. We extract this info…

The Schwarzschild metric and the Friedmann equations from Newtonian Gravitational collapse Open

Eduardo Guendelman, Arka Prabha Banik, Gilad Granit, Tomer Ygael, Christian Rohrhofer · 2015

As is well known, the 0 - 0 component of the Schwarzschild space can be obtained by the requirement that the geodesic of slowly moving particles match the Newtonian equation. Given this result, we show here that the remaining components ca…

Schwarzschild and Friedmann Lemaître Robertson Walker metrics from Newtonian Gravitational collapse Open

Eduardo Guendelman, Arka Prabha Banik, Gilad Granit, Tomer Ygael, Ben Gurion , et al. · 2015

As it is well known, the $0-0$ component of the Schwarzschild space can be obtained by the requirement that the geodesic of slowly moving particles match the Newtonian equation. Given this result, we show here that the remaining components…

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